Home / 282,829.60-390,294.86-155,504.20

Finding the Fourth Proportional to 282,829.60, 390,294.86 and 155,504.20

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Solution

The fourth proportional to 282,829.60, 390,294.86 and 155,504.20 is: 214,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,829.60 : 390,294.86 = 155,504.20 : x
  2. Step 2: Convert to fraction form
    282,829.60/390,294.86 = 155,504.20/x
  3. Step 3: Cross multiply
    282,829.60x = 390,294.86 × 155,504.20
  4. Step 4: Simplify right side
    282,829.60x = 60,692,489,968.41
  5. Step 5: Solve for x
    x = 60,692,489,968.41/282,829.60
  6. Step 6: Final answer
    x = 214,590.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.